A sudden and intense snowstorm caused treacherous driving conditions on Interstate 80 in Wyoming on Thursday, February 19, 2026, snarling traffic and prompting widespread hazard light usage. The rapid deterioration of road conditions between Green River and Rock Springs highlighted the challenges of winter travel in the region.
The shift in weather occurred within a remarkably short timeframe. While conditions in Green River were initially reported as light snow that quickly dissipated, Rock Springs experienced a rapid accumulation of approximately two inches of snow, accompanied by a layer of ice, within half an hour. The sudden change created hazardous conditions for motorists.
Witnesses reported numerous vehicles traveling at reduced speeds, generally between 40 and 45 miles per hour, with hazard lights activated. Despite the slowed pace, several drivers were observed passing other vehicles, and multiple instances were noted of cars cutting in front of tractor-trailers in attempts to reach an upcoming exit.
Interstate 80 in Wyoming spans 402.76 miles, connecting Cheyenne, the state’s capital, with cities including Evanston, Green River, Rock Springs, Rawlins, and Laramie, as well as providing links to Salt Lake City and Omaha, according to the Wyoming Department of Transportation. The highway too intersects with I-25 near Cheyenne, and is concurrent with U.S. Highway 30 for much of its length within the state.
The incident underscores the potential for rapidly changing weather conditions along I-80, a major transportation corridor that traverses a significant portion of the state. No official advisories or closures were immediately reported following the storm’s onset, and the Wyoming Highway Patrol has not yet released a statement regarding any accidents or incidents related to the hazardous conditions.
